This category is all about SQL interview questions and answers on different SQL concepts such as SQL Functions, Triggers, Commands, comparison concepts like difference between union and union all and difference between unique key and primary key e.t.c.
In this category, we have captured all important SQL concepts with practical examples.
I am sure any beginner can easily understand these concepts.
If you are preparing for an interview, these questions and answers can really boost your knowledge.
Some of them are very frequently asked interview questions such as rank, dense rank, partition e.t.c and some of them are advanced topics.
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🧰 About the Tool – Data Warehouse Dimension Generator The Data Warehouse Dimension Generator is designed for data engineers and analysts who frequently build Slowly Changing Dimensions (SCDs) in SQL. Whether you’re implementing SCD Type 1 (overwrite) or SCD Type 2 (history tracking), this tool helps generate standard SQL code for maintaining historical and current … Read more
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SQL JOIN Visualizer Tool This SQL JOIN Visualizer helps you understand how INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN work using sample tables. Choose a JOIN type and see how data combines visually. Select JOIN Type: INNER JOINLEFT JOINRIGHT JOINFULL OUTER JOIN How to Use the Tool Select a JOIN type from … Read more
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